Introduction: Why the First-Year Choice Decides Your Arrival Year
The first-year choice is the election under section 7701(b)(4). It lets a newly arrived individual be treated as a United States resident from a chosen date in the arrival year. Otherwise, residency would not begin until the following January. Furthermore, it converts what would have been a clean nonresident year into a split, dual-status year. Therefore, it changes the tax base, the reporting obligations and the treaty position all at once.
Most published guidance treats this election as a straightforward benefit. However, that framing fails wealthy arrivals badly. Consider a partner leaving a London firm, a founder selling shares before departure, or a banker collecting a March bonus. For each of them, the first-year choice can pull pre-arrival income into the American tax net for nothing. Consequently, the decision deserves modelling rather than assumption.
At TaxYork we prepare hundreds of arrival-year and departure-year returns each season for clients moving between Britain and the United States. Accordingly, this guide sets out every statutory condition and the 2026 figures. Furthermore, it covers section 6013(h), the reporting consequences and the UK split-year rules. Above all, it shows you when the first-year choice wins and when it quietly costs six figures.
What the First-Year Choice Actually Does
The first-year choice does not make you a resident for the whole calendar year. Instead, it fixes a residency starting date partway through the year and splits the year in two. Before that date you remain a nonresident alien taxed only on US-source income. After it you become a resident alien taxed on worldwide income.
Consequently, you file a dual-status return. A Form 1040-NR covers the nonresident portion and a Form 1040 covers the resident portion. The arrangement reverses depending on which period ends the year. The Internal Revenue Service explains the mechanics of taxation of dual-status individuals in its own guidance. Additionally, the election is not available to anyone who already qualifies as a resident under the green card test or the substantial presence test.
Who Actually Reaches for This Election
Three groups genuinely benefit. Firstly, married arrivals who want to file jointly with a spouse and claim the full standard deduction. Secondly, arrivals with heavy deductible expenditure in the closing weeks of the year, such as mortgage interest or state income tax. Thirdly, families with dependants whose credits only become available on a resident return.
By contrast, single arrivals with meaningful foreign income before the move usually lose. Notably, the calculus for high-net-worth clients almost always turns on what happened *before* the aeroplane took off, not after.
The Five Statutory Conditions You Must Satisfy
The first-year choice is not discretionary. Rather, five conditions in Treasury Regulation section 301.7701(b)-4(c)(3) must all be met, and the full regulatory text-4) is precise about each. Consequently, a single failed condition invalidates the entire election.
You must not already be a resident alien for the election year under either standard test. Moreover, you must not have been a resident alien in the immediately preceding year. Additionally, you must not have made this same election for part of that year. Finally, you must satisfy the substantial presence test for the following year.
The First-Year Choice and the 31-Day Consecutive Presence Test
The first-year choice requires at least 31 consecutive days of physical presence in the United States during the election year. Importantly, this run must be genuinely unbroken. The five-day absence concession discussed below does not apply to the 31-day requirement itself.
Certain days never count. Specifically, days as an exempt individual drop out entirely. Neither do days you could not leave because of a medical condition arising in the United States. Similarly, transit days between two foreign points drop out. Regular commuting days from Canada or Mexico do too. Therefore, a client with frequent transatlantic travel should map every day before assuming the test is met.
The 75 Per Cent Continuous Presence Requirement
Next, you must be present for at least 75 per cent of the days from the first day of that 31-day period through 31 December. The regulation defines continuous presence as a period including 75 per cent of those days. Furthermore, up to five days of absence within that window are deemed to be days of presence.
Consider the Revenue Service example. An individual arrives on 1 November, remains through 1 December, leaves, and returns on 17 December for the rest of the year. That produces 46 days of presence across a 61-day window, or 75.4 per cent. Accordingly, the test is satisfied and residency begins on 1 November.
Meeting Substantial Presence in the Following Year
The final condition looks forward rather than back. You must actually meet the substantial presence test in the year after the election year. Consequently, you cannot validly file the election until that following year has run its course.
This creates the timing problem that catches most self-preparers. Specifically, the return for the arrival year is due in April, but the qualifying facts are not yet complete. Therefore, an extension becomes mandatory rather than optional.
Your Residency Starting Date and the Dual-Status Year
Your residency starting date under the first-year choice is the first day of the earliest 31-day period you use to qualify. The Revenue Service sets out the general rules on residency starting and ending dates alongside the election guidance. Moreover, that date drives everything downstream.
Everything you earn from that date forward becomes taxable on a worldwide basis. Meanwhile, everything before it remains outside the American net unless it is US-source. Consequently, the choice of date is the single most valuable planning lever in the whole exercise.
Choosing Between Multiple Qualifying Periods
Where more than one 31-day period exists, the rule directs you to the first one. However, there is an important exception: if only a later period satisfies the 75 per cent condition, you use that later period instead. Therefore, an arrival with a fragmented autumn travel pattern may end up with a materially later residency start date than expected.
In our experience, this exception is worth real money. For instance, push a residency start date from late September to early November. That can keep an entire quarter of foreign investment income outside the American computation. Additionally, it shortens the window in which foreign accounts become reportable.
What Dual-Status Filing Actually Costs
Dual-status filers face genuine restrictions. Firstly, you cannot claim the standard deduction. Under the 2026 inflation adjustments, it is $16,100 for single filers and $32,200 for joint filers. Secondly, you cannot file a joint return in the ordinary way. Thirdly, several credits become unavailable.
Furthermore, nonresident rules govern income in the nonresident portion. Fixed and determinable US-source income therefore suffers a flat 30 per cent charge. However, a treaty rate can reduce it. Consequently, the first-year choice can produce a worse result than a plain nonresident year for someone with US dividends before arrival. Publication 519 remains the authoritative reference on these mechanics.
Pairing the First-Year Choice With Section 6013(h)
The first-year choice rarely stands alone. Instead, married arrivals combine it with the section 6013(h) election, which treats both spouses as full-year residents so that a joint return becomes possible. The Revenue Service describes the parallel provisions for a nonresident alien spouse in detail.
This pairing is where almost all the genuine benefit sits. Notably, it restores the $32,200 joint standard deduction, unlocks the wider joint brackets, and removes the dual-status filing restrictions entirely. Therefore, most guidance that praises the first-year choice is really praising this combination.
How the Joint Election Restores the Standard Deduction
Once you make both elections, you file a single Form 1040 as full-year residents. Accordingly, the joint brackets apply across the whole year. For 2026 those run at 10 per cent up to $24,800 and 12 per cent above that. The 22 per cent band starts at $100,800 and the 24 per cent band at $211,400. Rates of 32, 35 and 37 per cent begin at $403,550, $512,450 and $768,700.
The arithmetic can be striking. For example, a couple arriving in October with modest pre-arrival income may save five figures simply through bracket widening and the restored deduction. Additionally, education and dependant credits become available where they otherwise would not.
The Price of Full-Year Residence
However, section 6013(h) is not free. Critically, it pulls both spouses into worldwide taxation for the entire calendar year, including the months before either of you set foot in America. Consequently, a spouse who sold a London flat in February or received a UK bonus in March now reports that income to the Revenue Service.
Moreover, the reporting obligations expand to match. Full-year residence means full-year FBAR exposure, full-year Form 8938 reporting, and full-year exposure to the passive foreign investment company rules. Therefore, the election that saved a couple $12,000 in deductions can cost them far more in tax on pre-arrival income.
Why Wealthy Arrivals Often Should Not Elect
Here is the point that virtually no ranking page makes plainly. For high-net-worth arrivals, the first-year choice paired with section 6013(h) is frequently the wrong answer. Specifically, the deduction and bracket benefits are capped, whereas the cost of exposing pre-arrival income is unlimited.
The standard deduction benefit tops out at roughly $32,200 of shielded income. By contrast, a founder who realised a £2 million share gain in Britain in February faces an entirely uncapped American charge if full-year residence applies. Consequently, the sensible default for wealthy arrivals is to model the first-year choice, not to assume it.
Pre-Arrival Bonuses, Carried Interest and Share Disposals
British compensation cycles create the sharpest exposure. Bonuses typically land between February and April, well before a summer or autumn relocation. Therefore, a full-year residence election drags an entire bonus round into the American computation.
Carried interest presents the same problem with larger numbers. Similarly, share disposals made deliberately before departure, often to crystallise gains at British rates, become American taxable events under a full-year election. Accordingly, we advise clients to fix the American election position *before* executing any pre-departure disposal, not afterwards.
ISAs, Offshore Funds and the Reporting Fund Problem
Individual savings accounts carry no American shelter whatsoever. Consequently, the moment residence begins, the income and gains inside an ISA become fully taxable in the United States. MoneyHelper explains the British ISA framework, but that shelter simply does not cross the Atlantic.
Worse, most British collective funds are passive foreign investment companies for American purposes. Therefore, each holding potentially requires a separate Form 8621, and the punitive excess distribution regime applies. Investopedia's overview of the PFIC rules gives a useful primer, though the compliance burden in practice is far heavier than any summary suggests. Consequently, extending residence backwards by nine months can multiply an already substantial reporting exercise.
The Reporting Net: FBAR, Form 8938 and the Election Period
Reporting consequences follow the election, but not always in the way people expect. Notably, the first-year choice operates under Title 26, whereas the FBAR obligation lives in Title 31 of the United States Code. Therefore, the two regimes define "United States person" separately.
FinCEN addressed this directly in the regulatory preamble accompanying the current FBAR rules. Specifically, some individuals become residents only by virtue of a section 7701(b) election. They should file FBAR reports only for foreign accounts held during the period covered by the election. Consequently, accounts closed before your residency starting date fall outside the filing.
The Title 31 Boundary Most Preparers Miss
This distinction matters because the aggregate $10,000 threshold is easy to breach. However, the boundary works in your favour where a British current account was closed in the spring before an autumn move. The Revenue Service maintains its own summary of the FBAR filing requirement for reference.
Nevertheless, the position changes entirely if you add a section 6013(h) election. Full-year residence means the whole calendar year falls within scope. Therefore, the two elections have genuinely different reporting footprints, and preparers who treat them as one package get this wrong.
Form 8938 and the Part-Year Threshold
Form 8938 follows a different logic again. The reporting thresholds under FATCA for individual taxpayers are not prorated for a part-year resident. Consequently, a dual-status filer who crosses the threshold on the final day of the year reports in full.
For an American-resident married couple filing jointly, the threshold is $100,000 on the last day of the year or $150,000 at any point during it. Moreover, the year-end snapshot is exactly when a newly arrived executive is likely to be holding sale proceeds or an unspent bonus offshore. Therefore, timing a transfer badly can create a filing obligation that a week's difference would have avoided.
The UK Side: Split-Year Treatment and the Calendar Mismatch
No American election exists in isolation. Meanwhile, the British statutory residence test runs its own split-year analysis over a tax year ending on 5 April. Consequently, the two systems divide the same twelve months along different lines.
Someone leaving Britain to work in America typically relies on Case 1 of the split-year rules, covering those starting full-time work overseas. HMRC guidance on Case 1 requires non-residence in the following British tax year under the third automatic overseas test. Alternatively, Case 3 applies where you cease to have a home in the UK.
Case 1 and Case 3 Departures Compared
Case 1 demands the sufficient hours overseas calculation across the relevant period, with reduced permitted limits for gaps between employments. Therefore, a client who takes a two-month break between roles can fail it outright. The full RDR3 statutory residence test guidance sets out each condition.
Case 3 suits those retiring or relocating without immediate overseas employment. However, it requires you to genuinely cease having a British home, which a retained London flat available for your use will defeat. Consequently, we review property arrangements before advising on either route. HMRC's general guidance on residence and foreign income provides the starting framework.
When the Two Tax Years Refuse to Line Up
The mismatch produces genuine overlap. For instance, an individual who leaves Britain on 30 September remains British-resident for the tax year that began on 6 April, subject to split-year relief. Meanwhile, the American residency starting date under the first-year choice might be 1 October.
Therefore, income arising between 6 April and 30 September sits in the British net but outside the American one, which is usually the intended result. Nevertheless, the foreign tax credit position for the overlapping months requires careful sequencing, because British tax is assessed on a different year end. Accordingly, our tax treaty optimisation service exists precisely to resolve these timing collisions. The ICAEW tax faculty and HM Revenue and Customs both publish useful background on the underlying framework.
Making the First-Year Choice Correctly
Procedure defeats more elections than eligibility does. Consequently, the mechanics deserve the same attention as the analysis. You make the first-year choice by attaching a signed statement to your Form 1040 for the arrival year.
That statement must confirm three points. Firstly, that you are making the election. Secondly, that you were not a resident in the preceding year. Thirdly, that you meet substantial presence for the following year. It must also set out your days of presence. Furthermore, you list the dates of your 31-day and continuous presence periods, plus any absence days treated as presence. Moreover, the declaration is made under penalties of perjury.
The Statement, the Extension and the Payment Trap
You cannot file the return until the following year's substantial presence test is satisfied. Therefore, if that has not happened by 15 April, you request an extension using Form 4868, which moves the filing deadline to 15 October.
Here lies the trap. Critically, the extension postpones filing but never postpones payment. Furthermore, the regulation requires you to pay the tax you would owe as a nonresident alien with that extension application. Consequently, an unpaid balance accrues interest and late-payment penalties from April regardless of a valid extension.
Why the First-Year Choice Is Irrevocable
Once made, the first-year choice cannot be revoked without the approval of the Commissioner. The regulation states this plainly, and in practice consent is rarely forthcoming. Therefore, a rushed election in April becomes a permanent feature of your American tax history.
This irrevocability is precisely why modelling matters. In our experience, the clients who regret the first-year choice are those who made it before quantifying their pre-arrival British income. Accordingly, we insist on a full-year projection before any statement is signed.
Worked Case Study: A London Portfolio Manager Moving to New York
Consider Eleanor, a British portfolio manager who moved from London to New York on 12 October 2026. She was a nonresident alien throughout 2025, and she will comfortably meet substantial presence in 2027. Consequently, she qualifies for the first-year choice with a residency starting date of 12 October 2026.
Her 2026 income divides sharply. Before the move, she received a March bonus of £480,000. Additionally, she realised a £610,000 gain on a June share disposal. Britain taxed both. After the move, she earned $92,000 of American salary and $6,000 of American dividend income. Meanwhile, her husband earned £145,000 in Britain and no American income at all.
Under a plain nonresident year, Eleanor files Form 1040-NR on the $92,000 salary alone, with the dividends taxed at the treaty rate. Alternatively, the first-year choice alone gives her a dual-status return covering 12 October to 31 December. That captures the same American income plus any worldwide income in the short window. Notably, neither route touches the March bonus or the June gain.
Now add section 6013(h). The couple gains the $32,200 standard deduction and the joint brackets, worth roughly $11,400 against their American income. However, full-year residence brings £480,000 of bonus, £610,000 of gain and £145,000 of spousal salary into the American computation. Consequently, the additional American charge before credits exceeds $300,000.
British tax paid provides foreign tax credits, which absorb much of that. Nevertheless, the capital gain remains the problem. British capital gains tax at 24 per cent sits well below the combined American rate on that gain. Consequently, a substantial residual charge survives the credit. Furthermore, New York State and City impose their own tax on full-year residents with no treaty relief available. Therefore, Eleanor and her husband make the first-year choice without the 6013(h) election, file dual-status, and preserve well over $250,000. Above all, the modelling took two hours and the saving was permanent.
How TaxYork Can Help
We prepare arrival-year and departure-year returns as a core part of our US tax returns for expats practice. Specifically, we model the first-year choice against a plain nonresident year and against the full-year 6013(h) alternative before recommending anything. Consequently, our clients see the numbers rather than a rule of thumb.
Our work extends beyond the first-year choice itself. Furthermore, we handle the associated FBAR and FATCA reporting and the passive foreign investment company analysis on British funds. Additionally, we sequence the British and American filings so that credits land in the right year. Additionally, our cross-border planning service addresses pre-departure disposals, compensation timing and account restructuring while those decisions remain open.
Where clients arrive having already missed American filings, we resolve the backlog through the IRS Streamlined Filing Compliance Procedures alongside the arrival-year work. Moreover, we coordinate directly with British advisers so that split-year treatment and the American residency starting date reconcile properly. Accordingly, you receive one coherent position rather than two competing ones.
Conclusion
The first-year choice is a precision instrument, not a default setting. Furthermore, its value depends almost entirely on facts that occurred before you arrived, which is exactly the information most generic guidance ignores. Therefore, treat any advice that recommends the election without asking about your pre-arrival income with considerable scepticism.
For modest arrivals with a spouse and few foreign assets, the first-year choice combined with section 6013(h) usually pays. By contrast, for portfolio managers, founders and partners with substantial British income earlier in the year, it frequently destroys value. Consequently, the right answer emerges only from a proper computation of both scenarios.
Above all, remember that the first-year choice is irrevocable. Furthermore, the extension does not extend payment, and reporting obligations follow whichever version you choose. Ultimately, a few hours of modelling in the autumn before you move protects far more than it costs.
Contact Us
If you are moving between Britain and the United States this year, book a consultation before you sign any election statement. Furthermore, we will model the first-year choice against every alternative and give you the numbers in writing.
Reach our team at hello@taxyork.com or on 020 3488 8606. Additionally, we welcome clients with missed US tax returns, missed FBAR filings or unreported British pension and investment accounts. Moreover, we handle those alongside arrival-year planning.
Disclaimer
This article provides general information on United States and United Kingdom tax matters and does not constitute tax advice for any particular person or situation. Tax legislation, thresholds and rates change frequently, and the application of the first-year choice depends entirely on individual facts. Consequently, you should obtain professional advice tailored to your circumstances before making or omitting any election. TaxYork accepts no liability for action taken in reliance on this article without such advice.